import os
import re
import PyPDF2
import xlwt


# 获取当前文件夹中所有的PDF文件
HANDLE_PATH = '.'
pdf_files = [f for f in os.listdir(HANDLE_PATH) if os.path.isfile(f) and f.endswith('.pdf')]
path = ''
paths = "./转换之后/"
# 检查路径是否存在，如果不存在则创建
if not os.path.exists(paths):
    os.makedirs(paths)

for pdf_file in pdf_files:
    # 检查是否已经存在转换过的Excel文件，如果存在则跳过
    excel_file = pdf_file.replace('.pdf', '.xls')
    if os.path.exists(excel_file):
        continue

with open(pdf_file, 'rb') as file:
    pdf_reader = PyPDF2.PdfReader(file)
    num_pages = len(pdf_reader.pages)
    text = ''
    for page in range(num_pages):
        pdf_page = pdf_reader.pages[page]
        text += pdf_page.extract_text()

    delivery_notice = re.search(r'送货通知单\s+(\w+)', text).group(1)
    matches = re.findall(r'(\d+)\s+(.*?)\s+(\d+)\s+(\w+)\s+(\d+)\s+(\w+)\s+(\d+箱)\s+(\d+)\s+(\d+\(\d+\))', text)

    workbook = xlwt.Workbook()
    worksheet = workbook.add_sheet('供应商供货清单')

    info = [
        ('发运编号：', '', '', '', '', '', '客户：', '长春富维江森自控汽车饰件系统有限公司', '', '', ''),
        ('供应商', '', '', '', '', '', '采购订单编号：', '', '', '', ''),
        ('供应商地址：', '', '', '', '', '', '收货地址：', '', '', '', ''),
        ('序号', '零件号', '零件名称', '到货数量', '单位', '使用车型', '到货包装数', '标准包装数', '批次', '送货通知单号', '备注')
    ]

    font_style = xlwt.easyxf('font: height 280, bold on;')  # 设置字体大小为14，加粗
    borders = xlwt.Borders()  # 创建边框对象
    borders.left = xlwt.Borders.THIN
    borders.right = xlwt.Borders.THIN
    borders.top = xlwt.Borders.THIN
    borders.bottom = xlwt.Borders.THIN
    font_style.borders = borders  # 将边框应用到字体样式

    for row, row_data in enumerate(info):
        for col, cell_data in enumerate(row_data):
            worksheet.write(row + 1, col, cell_data, font_style)

    for col in range(11):  # 设置所有列的宽度为15个字符宽度
        worksheet.col(col).width = 256 * 23

    title_style = xlwt.easyxf('align: horiz center, vert center; font: height 280, bold on;')
    title_style.borders = borders
    worksheet.write_merge(0, 0, 0, 10, '供应商供货清单（国内供应商）', title_style)

    # 设置数据行的字体样式和边框
    data_style = xlwt.easyxf('font: height 280;')
    data_style.borders = borders

    for index, (part_number, part_name, unit, arrival_quantity, usage, packaging, standard_packaging, batch) in enumerate(matches):
        worksheet.write(index + 5, 0, index + 1, data_style)
        worksheet.write(index + 5, 1, part_number, data_style)
        worksheet.write(index + 5, 2, part_name, data_style)
        worksheet.write(index + 5, 3, arrival_quantity, data_style)
        worksheet.write(index + 5, 4, unit, data_style)  # 单位
        worksheet.write(index + 5, 5, usage, data_style)  # 使用车型
        worksheet.write(index + 5, 6, packaging, data_style)  # 到货包装数
        worksheet.write(index + 5, 7, standard_packaging, data_style)  # 标准包装数
        worksheet.write(index + 5, 8, batch, data_style)  # 批次
        worksheet.write(index + 5, 9, delivery_notice, data_style)
        worksheet.write(index + 5, 10, '', data_style)  # 备注

    workbook.save(paths + excel_file)
